如何遍历用QStandardItemModel创建的动态创建的复选框列表?

2024-09-30 06:31:08 发布

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我正在创建一个应用程序,在其中我需要制作一个清单,其中有一个从另一个类给我的列表。用户将选中所需项目旁边的复选框,然后单击按钮。对于那些被检查的行,我想在相邻的QBoxGroup的QLabel中打印“youcheckednumber”

(在我的实际应用程序中,我遍历类,在类中调用类中的函数)。我很难遍历我的列表,因为我必须检查这个框是否被选中,以及名称是否是我想要打印的名称(打印的语句与实际名称不同,因为在我的应用程序中,我将调用我所在行的类中的函数)

如果用户用QLabel选中多个框,我也不知道如何处理这个问题,因为我可以打印多个语句。我可能不得不让用户一次只能选择一行,但这比上面的问题要小

from PyQt5.QtWidgets import (QApplication, QTabWidget, QVBoxLayout, QWidget, QGridLayout, QLabel, QGroupBox,
                             QListView, QPushButton)
from PyQt5.QtGui import QStandardItem, QStandardItemModel
from PyQt5.QtCore import Qt
import sys, os

class MyPage(QWidget):
    def __init__(self):

        super().__init__()
        self.app = QApplication(sys.argv)
        self.screen = self.app.primaryScreen()
        self.size = self.screen.size()
        self.mydata = None

        # These numbers are arbitrary and seemed
        # to have the best balance
        self.textWidth = self.size.width() * 0.64
        self.chooseWidth = self.size.width() * 0.29

        self.createTextGroup()
        self.createStatsGroup()

        self.layout = QGridLayout()
        self.layout.addWidget(self.TextGroup, 0, 0, 0, 1)
        self.layout.addWidget(self.StatsGroup, 0, 1)
        self.setLayout(self.layout)
        self.show()

    # The left side of AnalysisTab containing the textbox
    # where the analysis will be shown
    def createTextGroup(self):
        self.TextGroup = QGroupBox("Analysis")
        self.TextGroup.setFixedWidth(self.textWidth)
        self.setStyleSheet("font: 15pt Tw Cen MT")

        # Here is where the analysis will go
        self.analysis = QLabel()

        self.layout = QGridLayout()
        self.layout.addWidget(self.analysis)
        self.TextGroup.setLayout(self.layout)

    # The right side of AnalysisTab containing a checklist of tests that
    # may be run on the data and a button to press to run the tests
    def createStatsGroup(self):
        self.StatsGroup = QGroupBox("Statistics Tests")
        self.StatsGroup.setFixedWidth(self.chooseWidth)
        self.setStyleSheet("font: 15pt Tw Cen MT")

        # List widgets where users will choose what analysis
        # they would like ran on their data
        self.statsAnalysis = QListView()
        self.model = QStandardItemModel(self.statsAnalysis)

        for member in myList(self):
            item = QStandardItem(member)
            item.setCheckable(True)
            check = Qt.Unchecked
            item.setCheckState(check)
            self.model.appendRow(item)

        self.statsButton = QPushButton("Analyze")
        self.statsButton.clicked.connect(self.statsButtonClicked)

        self.statsAnalysis.setModel(self.model)
        self.layout = QGridLayout()
        self.layout.addWidget(self.statsAnalysis, 0, 0, 0, 1)
        self.layout.addWidget(self.statsButton, 1, 1)
        self.StatsGroup.setLayout(self.layout)

    def statsButtonClicked(self):
        model2 = self.model
        for index in range(model2.rowCount()):
            item = model2.item(index)
            if item.checkState() == Qt.Unchecked and item == "One":
                self.analysis.setText("You checked number 1")
            elif item.checkState() == Qt.Unchecked and item == "One":
                self.analysis.setText("You checked number 2")
            elif item.checkState() == Qt.Unchecked and item == "One":
                self.analysis.setText("You checked number 3")
            elif item.checkState() == Qt.Unchecked and item == "One":
                self.analysis.setText("You checked number 4")
            elif item.checkState() == Qt.Unchecked and item == "One":
                self.analysis.setText("You checked number 5")
            else:
                self.analysis.setText("You didn't check anything")

def myList(self):
    thisList = ["One", "Two", "Three", "Four", "Five"]
    return thisList

def runStatsWiz():
    app = QApplication(sys.argv)
    myPage = MyPage()
    myPage.show()
    app.exec_()


runStatsWiz()

现在,statsButtonClicked()函数返回TypeError: 'QStandardItemModel' object is not callable

我尝试了这些StackOverflow页面上的信息,但似乎不知道如何查看行的名称以及是否选中了行:


Tags: andtheselfyoudefanalysisitemqt
1条回答
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1楼 · 发布于 2024-09-30 06:31:08

正如我在注释中指出的,您有一个类型,因为您有一个名为self.model的属性,但您希望使用self.model()进行访问

另一方面,您的逻辑是不正确的,因为例如它没有被定义为row,另一方面,假设这个错误不存在,并且您的逻辑检查了2个选项,您正在编写“您检查了数字X”,然后将其替换为“您检查了数字Y”

其逻辑是将选中项目的文本保存在一个列表中,如果该列表不是空的,则连接信息,否则表示没有选中项目

def statsButtonClicked(self):
    checked_options = []
    for index in range(self.model.rowCount()):
        item = self.model.item(index)
        if item is not None and item.checkState() == Qt.Checked:
            checked_options.append(item.text())
    if checked_options:
        self.analysis.setText(
            "\n".join(["You checked number {}".format(option) for option in checked_options])
        )
    else:
        self.analysis.setText("You didn't check anything")

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